Measurement & Testing
| Thu 16 Apr 2026
Beijing, April 17 -- Shanxi Coal Geological Exploration Res Institute Co Ltd has secured a patent on Hydraulic Ring Geological Crack Measuring Device. Yang Wenfu, Zeng Ling, Qi Fuhui, Liu Yongdong, Li Xia, Ju Junhao, Zhang Xingxing, Wang Cong, Li Weibing, Qin Xuan, Song Wenlong, Wang Xu, Cui Yan, Zhao Rongjie and Fan Yongyong de..